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EP0514793A1 - Halter zum Gebrauch in Rohrverbindungen - Google Patents

Halter zum Gebrauch in Rohrverbindungen Download PDF

Info

Publication number
EP0514793A1
EP0514793A1 EP92108258A EP92108258A EP0514793A1 EP 0514793 A1 EP0514793 A1 EP 0514793A1 EP 92108258 A EP92108258 A EP 92108258A EP 92108258 A EP92108258 A EP 92108258A EP 0514793 A1 EP0514793 A1 EP 0514793A1
Authority
EP
European Patent Office
Prior art keywords
gasket
retainer
end wall
wall portion
joint
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP92108258A
Other languages
English (en)
French (fr)
Other versions
EP0514793B1 (de
Inventor
Tsutomu C/O Fujikin Incorporated Shinohara
Kazuhiro C/O Fujikin Incorporated Yoshikawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujikin Inc
Original Assignee
Fujikin Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujikin Inc filed Critical Fujikin Inc
Publication of EP0514793A1 publication Critical patent/EP0514793A1/de
Application granted granted Critical
Publication of EP0514793B1 publication Critical patent/EP0514793B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
    • F16L19/0212—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member using specially adapted sealing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts

Definitions

  • the present invention relates to a retainer for use in pipe joints, and more particularly to a retainer for holding an annular gasket in position between opposed end faces of a pair of tubular joint members.
  • Retainers are already known for holding an annular gasket in position between opposed end faces of a pair of tubular joint members.
  • the known retainer comprises an annular end wall, a cylindrical side wall extending outward from the end wall substantially perpendicular thereto, and a plurality of holding legs extending further outward from the cylindrical side wall and having means engageable with the joint member (see Examined Japanese Patent Publication HEI 2-62756).
  • the gasket for use in pipe joints needs to be replaced, for example, when becoming impaired in sealing effect.
  • the conventional retainer is so shaped as to surround the entire gasket with the annular end wall and the cylindrical side wall, with the result that the gasket can not be placed into or removed from the retainer as attached to the end portion of the joint member. Accordingly, the replacement of the gasket requires the cumbersome procedure of removing the retainer from the joint member. Furthermore, after pipes have been joined to the joint for piping, it is likely that only a small clearance will be formed between the opposed ends of the two joint members even when the joint members are unfastened from each other.
  • a retainer which comprises an annular body positionable on one side face of a gasket and having a pair of support lugs projecting from the outer periphery of the annular body at positions dividing the circumference thereof into two equal portions.
  • the support lugs are opposed to each other for holding an end portion of a joint member therebetween, and a gasket support is provided on only one of the divided peripheral portion of the body (see Examined Japanese Patent Publication HEI 1-28398).
  • the proposed retainer is so adapted that the gasket can be replaced with the retainer attached to the end portion of the joint member, whereas the retainer has the problem that the gasket is liable to slip off the retainer and difficult to handle when the retainer is stored or transported with the gasket fitted therein since the gasket is merely held by the gasket support which is provided on a part of the lower half of the retainer body outer periphery.
  • the main object of the present invention is to provide a retainer for use in pipe joints which permits easy replacement of the gasket even after pipes have been joined to the joint and which is adapted to hold the gasket as fitted therein without the likelihood of the gasket slipping off readily.
  • the present invention provides a retainer for use in a pipe joint having a pair of tubular joint members for holding an annular gasket in position between opposed end faces of the joint members, the retainer comprising an end wall portion to be positioned on one side face of the gasket, a cylindrical portion extending from the end wall portion substantially perpendicular thereto for preventing the gasket from moving radially thereof, and an engaging portion provided on the cylindrical portion and engageable with an end portion of one of the joint members, the end wall portion being formed with a cutout for passing the gasket therethrough.
  • the cutout subtends an angle of 160 to 180 degrees at the center of the end wall portion.
  • the gasket can be placed into or removed from the retainer through the cutout formed in the end wall portion and can therefore be replaced with the retainer attached to the end portion of the joint member.
  • the gasket is prevented by the cylindrical portion from moving radially thereof, with one side face thereof held by the retainer end wall portion, and is therefore precluded from slipping off the retainer readily.
  • the gasket can be replaced with the retainer of the invention attached to the joint member end portion, so that it is easy to replace the gasket even after pipes have been joined to the joint.
  • the gasket When fitted in the retainer, the gasket will not readily slip off the retainer.
  • the retainer is therefore convenient to store or transport.
  • first tubular joint member 1 is butted against the left end face of a second tubular joint member 2, with an annular gasket 3 held therebetween and retained on the left end of the second joint member 2 by a retainer 9.
  • the second joint member 2 is fastened to the first joint member 1 by a nut 4 fitted around the second joint member 2 and screwed on the first joint member 1.
  • a pipe 5 is inserted into the second joint member 2 from its right end and secured to the member 2 by a weld 6.
  • the butting end faces of the first and second joint members 1 and 2 are respectively formed with annular ridges 7, 8 semicircular in cross section for holding the gasket 3 therebetween.
  • the retainer 9 is made of a thin metal plate and comprises an end wall portion 10 positionable on one side face of the gasket 3, a cylindrical portion 11 extending from the end wall portion 10 substantially perpendicular thereto, and an engaging portion provided on the forward end (right end) of the cylindrical portion 11 and engageable with the left end of the second joint member 2.
  • the end wall portion 10 has a cutout 15.
  • the end wall portion 10 is in the form of an annular wall which is partly cut out along its circumference to form the cutout 15 subtending an angle of about 170 degrees at the center of the portion 10.
  • the gasket 3 can be brought into and out of the retainer 9 through the cutout 15.
  • the cutout 15 is formed only in the end wall portion 10 and not provided in the cylindrical portion 11.
  • Two incisions are formed in the part of the cylindrical portion 11 toward its forward end at each of positions dividing the circumference of the portion 11 into three equal portions, whereby large circular-arc portions 13 and small circular-arc portions 14 are formed as arranged alternately.
  • the small circular-arc portions 14 are slightly bent inward and each have at its outer end a support projection 12 for holding the outer surface of the left end portion of the second joint member 2.
  • the engaging portion comprises these three support projections 12. Since the retainer 9 is thin and made of metal, the engaging portion has elasticity.
  • the engaging portion of the retainer 9 When the engaging portion of the retainer 9 is fitted to the second joint member 2, the engaging portion is expanded outward to elastically engage the left end outer surface of the second joint member 2, whereby the gasket 3 as retained in the retainer 9 is held to the left end of the second joint member 2.
  • the nut 4 fitted around the second joint member 2 and screwed on the first joint member 1 is tightened up, the annular ridge 7 of the first joint member 1 and the annular ridge 8 of the second joint member 2 are pressed against the respective surfaces of the gasket 3 to provide a fluidtight joint.
  • the nut 4 is loosened and removed from the first joint member 1. This provides a small clearance between the opposed end faces of the two joint members 1, 2, rendering the retainer 9 slightly movable axially leftward.
  • the retainer 9 is then moved leftward to form a clearance between the end wall portion 10 of the retainer 9 and the left end face of the second joint member 2. This state is shown in FIG. 5.
  • the gasket 3 can be withdrawn by tilting the gasket 3 in the clearance and pulling the gasket obliquely leftward through the cutout 15 of the retainer 9.
  • a new gasket 3 is then inserted as inclined into the retainer 9 through the cutout 15.
  • the gasket 3 can be held in the retainer 9.
  • the engaging portion comprises three support projections 12 according to the above embodiment, the support projections are not limited to three in number.
  • the engaging portion may be in the form of a ring, and the retainer may be cut axially thereof to impart elasticity to the engaging portion.
  • the end wall portion 10 is in the form of an annular wall which is cut out along a portion of its circumfererence subtending an angle of about 170 degrees at the center of the end wall portion
  • the cutout is not limited to this size provided that the gasket 3 can be passed through the cutout 15 when the two joint members 1, 2 are unfastened from each other and that the gasket 3 as fitted in the retainer 9 will not readily slip off.
  • the center angle to be subtended by the cutout is determined in view of the outside diameter, thickness and material of the gasket and is preferably 160 to 180 degrees.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gasket Seals (AREA)
  • Joints With Pressure Members (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
EP92108258A 1991-05-20 1992-05-15 Halter zum Gebrauch in Rohrverbindungen Expired - Lifetime EP0514793B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP35551/91 1991-05-20
JP1991035551U JP2540559Y2 (ja) 1991-05-20 1991-05-20 管継手用リテーナ

Publications (2)

Publication Number Publication Date
EP0514793A1 true EP0514793A1 (de) 1992-11-25
EP0514793B1 EP0514793B1 (de) 1995-06-28

Family

ID=12444865

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92108258A Expired - Lifetime EP0514793B1 (de) 1991-05-20 1992-05-15 Halter zum Gebrauch in Rohrverbindungen

Country Status (6)

Country Link
US (1) US5409270A (de)
EP (1) EP0514793B1 (de)
JP (1) JP2540559Y2 (de)
KR (1) KR960010234B1 (de)
CA (1) CA2068968C (de)
DE (1) DE69203154T2 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9308146U1 (de) * 1993-04-26 1993-08-05 Manuli Rubber Industries S.r.l., Ascoli Piceno Adapter zum Verbinden von Rohrelementen
US5340170A (en) * 1992-04-20 1994-08-23 Fujikin Incorporated Pipe joint and gasket retainer for use in pipe joint
US5423580A (en) * 1994-01-26 1995-06-13 Cajon Company Fluid coupling with gasket retainer
US5673946A (en) * 1995-07-07 1997-10-07 Ewal Manufacturing Co., Inc. Gasket assembly for a fluid coupling
US5681064A (en) * 1995-07-07 1997-10-28 Ewal Manufacturing Co., Inc. Gasket retainer

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2218318C (en) * 1996-10-15 2006-12-12 Tadahiro Ohmi Fluid coupling
JP3876351B2 (ja) * 1997-06-18 2007-01-31 忠弘 大見 管継手
US6260853B1 (en) * 1998-06-23 2001-07-17 Kc Multi-Ring Products, Inc. Gasket having centering features
US6722665B1 (en) * 2002-02-04 2004-04-20 Novellus Systems, Inc. MESC seal, O-ring carrier
FR2848246B1 (fr) * 2002-12-06 2006-05-26 Renault Sa Joint metallique de circuit d'echappement a deflecteur integre et moteur incluant un tel joint
US7364166B2 (en) * 2003-01-24 2008-04-29 Applied Engineered Surfaces, Inc. Seal and retainer for a fluid connection
US7201404B1 (en) * 2003-12-17 2007-04-10 Related Metal Fabrication, Inc. Union nut with lock member
US20050275222A1 (en) * 2004-06-14 2005-12-15 Yoakam John A Gasket for a fluid connection
US20070045968A1 (en) * 2005-08-31 2007-03-01 Integra Companies, Inc. Pipe gasket
US20090232595A1 (en) * 2008-03-13 2009-09-17 Benjamin Willemstyn Connector, Gasket and Method of Attaching The Same
US9074686B2 (en) 2010-12-06 2015-07-07 Microflex Technologies Llc Ring seal retainer assembly and methods
GB2496872B (en) 2011-11-23 2015-09-23 Klaw Products Ltd Flange assembly
JP5898538B2 (ja) * 2012-03-21 2016-04-06 ダイキョーニシカワ株式会社 筒状部材の嵌合構造
US9453600B2 (en) * 2012-05-15 2016-09-27 Parker-Hannifin Corporation Extreme temperature device for flat face seal fitting
CN108980353B (zh) 2014-04-17 2021-02-02 肯发系统有限公司 用于接合高纯度流体通路的超密封垫圈
CN108027065A (zh) * 2015-09-03 2018-05-11 Nok株式会社 垫片
KR102079575B1 (ko) * 2019-02-18 2020-02-20 (주) 세원 배관 어셈블리
CN215109532U (zh) * 2021-07-13 2021-12-10 盾安汽车热管理科技有限公司 电子水泵

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4838583A (en) * 1982-08-23 1989-06-13 Cajon Company Fluid coupling

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US917388A (en) * 1908-01-10 1909-04-06 William B Welch Jr Washer-retainer.
US1339141A (en) * 1918-04-02 1920-05-04 Matthew C Sharpnack Hose-coupling
US1354904A (en) * 1919-08-16 1920-10-05 William L Read Coupling-head and process of making same
US2462762A (en) * 1944-10-19 1949-02-22 Us Gasket Company Gasket centering means
US4650227B1 (en) * 1982-08-23 2000-11-28 Cajon Co Fluid coupling
JP2622010B2 (ja) * 1990-04-09 1997-06-18 三興工業株式会社 管継手
US5145219A (en) * 1990-08-01 1992-09-08 Cajon Company Tube coupling with gasket retainer
US5163721A (en) * 1990-10-24 1992-11-17 Cajon Company Fluid coupling with gasket retainer having interlocking portions

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4838583A (en) * 1982-08-23 1989-06-13 Cajon Company Fluid coupling

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5340170A (en) * 1992-04-20 1994-08-23 Fujikin Incorporated Pipe joint and gasket retainer for use in pipe joint
DE9308146U1 (de) * 1993-04-26 1993-08-05 Manuli Rubber Industries S.r.l., Ascoli Piceno Adapter zum Verbinden von Rohrelementen
US5423580A (en) * 1994-01-26 1995-06-13 Cajon Company Fluid coupling with gasket retainer
US5673946A (en) * 1995-07-07 1997-10-07 Ewal Manufacturing Co., Inc. Gasket assembly for a fluid coupling
US5681064A (en) * 1995-07-07 1997-10-28 Ewal Manufacturing Co., Inc. Gasket retainer
US5758910A (en) * 1995-07-07 1998-06-02 Parker-Hannifin Corporation Gasket assembly for a fluid coupling

Also Published As

Publication number Publication date
CA2068968A1 (en) 1992-11-21
US5409270A (en) 1995-04-25
CA2068968C (en) 2003-11-04
JPH04128588U (ja) 1992-11-24
KR960010234B1 (ko) 1996-07-26
DE69203154D1 (de) 1995-08-03
JP2540559Y2 (ja) 1997-07-09
KR920021912A (ko) 1992-12-19
DE69203154T2 (de) 1995-11-16
EP0514793B1 (de) 1995-06-28

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